I'm with 005 on this one. The idea's very cool as an intro to a bonus disc, but for me, that classic 20th Century Fox fanfare and logo, followed by the Lucasfilm logo, is the start of Star Wars. Tinkering with it, therefore, seems like a bad idea to me.
I'm sure I'm not alone in saying that, to this day, whenever I'm watching a movie from 20th Century Fox and that logo and music start up, for a fraction of a second I get excited because my brain thinks it's about to see Star Wars (see... Pavlov was right!). Why mess with something that ingrained our our collective heads?